My coogle shopping product feed was showing errors for missing shipping information. So as suggested I added the shipping settings at account level in the merchant center. But unfortunately the shipping errors still exists in the diagnostics window and all my products are in disapproved state. Can you please suggest how to fix this issue?

to immediately verify any shipping issue has been fixed,resubmit the feed and then carefully inspect the individual item's shipping-rate-calculator, by clicking on the item's title, under the products-list-tab of the merchant-center --https://merchants.google.com/mc/items/details

also, be certain that the currency submitted for the item-offer's price,and registered-feed's target-county matches the currency and countryset within the shipping-settings.

also, be certain all-products is selected for at least one shipping-setting.

if there are any issues simply fix the shipping-settings, then

verify the fix by inspecting the item's shipping-rate-calculator.

if shipping is submitted in the feed, fix and resubmit the data-feed,

and verify the fix by inspecting the item's shipping-rate-calculator --

shipping in the feed for an item overrides all settings for that item.

note that a (shipping) fix cannot be verified using the diagnostics-tab.

the diagnostics-tab is a 30-day historic record --messages will never get removed for up to 30-days.

google may take 72-hours or more before the current messages are updated for the current-issues list within the diagnostics-tab.

the diagnostics-tab cannot be used to immediately verify that a fix has worked.

the diagnostics-tab reports examples or samples of issues,to help locate a root-cause, to be fixed for all effected items --the actual number of items effected may be far far greater.